baber/WOPTO huggingface dataset:
Patent GB-948770-A (GB)
Title: Luminescent glass and a composition therefor
Inventor: ANDERSON DAVID GUDY
IPC: C03C3/095
Filed: 1960-02-25
Abstract: A composition for an alkali metal oxide-alkaline earth metal oxide glass which is luminescent under excitement by ionizing radiations and can be used in scintillators includes a cerium compound, the alkali metal oxide being either wholly or partly lithium oxide.  The alkaline earth metal oxide can be wholly or partly magnesium oxide. The composition can comprise 1-10% by weight of alkali metal oxide, 10-40% by weight of alkaline earth metal oxide, 50-80% of silica and 1-20% of cerous oxide.  The composition can incorporate a lithium compound artificially enriched by the Li6 isotope.  The composition is fired at from 1400-1600 DEG  C. under reducing conditions, with or without small amounts of reducing agents, to ensure that the cerium is in the cerous state.  The materials used should be pure and particularly free from iron and the firing should be effected in platinum containers.ALSO:A composition for an alkali metal oxide-alkaline earth metal oxide glass which is luminescent under excitement by ionizing radiations and can be used in scintillators, includes a cerium compound, the alkali metal oxide being either wholly or partly lithium oxide.  The alkaline earth metal oxide can be wholly or partly magnesium oxide.  The composition can comprise 1-10% by weight of alakli metal oxide, 10-40% by weight of alkaline earth metal oxide, 50-80% of silica and 1-20% of cerous oxide.  The composition can incorporate a lithium compound artificially enriched by the Li6 isotope.  The composition is fired at from 1400-1600 DEG C. under reducing conditions, with or without small amounts of reducing agents, to ensure that the cerium is in the cerous state. The materials used should be pure and particularly free from iron and the firing should be effected in platinum containers.  The glass emits blue light of wavelength in the region of 0.42m  when exerted by U.V. light, X-rays, and cathode rays. a , b  and g  radiation and neutrons can also be used for excitation.
Patent GB-942201-A (GB)
Title: Process for producing a silicon film
IPC: C30B25/02
Filed: 1960-02-25
Abstract: In a process for producing a silicon film, elementary silicon is contacted with hydrogen atoms in a field of hydrogen atom generation with the result that the complex [SiHx](4-x)- is produced.  The complex is decomposed in the vicinity of a substrate with deposition of elementary silicon thereon.  Preferably, the process is effected at room temperature and a pressure from 10-1000 microns of mercury. Specified substrates are quartz, glass ceramic, copper, titanium, tin, platinum, gold, aluminium, carbon, arsenic, germanium and silicon. Examples are given.ALSO:In a process for producing a silicon film, elementary silicon is contacted with hydrogen atoms in a field of hydrogen atom generation such that a complex [SiHx](4-x)- is produced Thereafter the complex is decomposed in the vicinity of a substrate with deposition of elementary silicon thereon. Specified substrates are quartz, glass ceramic, copper, titanium, tin, platinum, gold, aluminium, carbon, arsenic, germanium, and silicon. Examples describe deposition of silicon on (1) a film of silicon, (2) a copper ring, and (3) a single silicon crystal.
Patent GB-101133-A (GB)
Title: Improvements in Lock Nuts.
IPC: F16B39/32
Filed: 1916-05-10
Abstract: 101,133. Van der Valk's " Certitudo " Patentmoer, (Assignees of Valk, C. C. van der). Oct. 25, 1915, [Convention date]. Locking nuts.-A threaded roller 4 is jammed between the bolt and an eccentric lug 3 on the upper face of the nut. The roller is slightly flattened at one side to engage the lug and is finely serrated to give a good grip.
Patent GB-869255-A (GB)
Title: Improvements in fuel systems for gas turbines
Inventor: SIMMONS HAROLD CUTHBERT
IPC: F02C9/16
Filed: 1957-02-28
Abstract: 869,255. Gas turbine plant piston packing. DOWTY FUEL SYSTEMS Ltd. May 23, 1958 [Feb. 28, 1957], No. 6785/57. Classes 110 (3) and 122 (1). A fuel system for a gas turbine engine operating under substantially constant compressor inlet pressure comprising a throttle valve to control the fuel flow to the combustion chambers, the adjustment of which is limited by a stop positioned in accordance with compressor discharge pressure, has a control member connected to the throttle valve by a spring so that operation of the stop does not prevent movement of the control member. The throttle valve unit, Fig. 2, comprises a body member 7 formed with a pair of parallel bores 8, 9. The bore 9 contains a spring-loaded plunger 12, the spring loading of which adjusted by an abutment 19, having at one end a peeling wall seal 17 which seals the bore 9 from the space in the cap 14 to which compressor discharge pressure is applied. A pair of parallel bars 24 pivoted to a block 26 carry a pair of rollers 27. The arrangement is such that the position of the rollers 27, which limit the travel of the throttle valve, is determined by the compressor discharge pressure. The throttle valve is mounted in the bore 8 and comprises a fixed sleeve 28 and a slidably mounted throttle sleeve 29. A pair of grooves 32, 33, Fig. 5, in the sleeve 28 carry the fuel to and from the throttle valve. One or more holes 36 feed fuel to a groove 37 formed around the sleeve 29. A plurality of passages 39 connect the groove 37 with a narrow groove 38 which co-operates with a shaped opening 41 to form a variable throttle. A flange 43 secured to the sleeve 29 coacts with the rollers 27 to limit the amount of opening of the thiottle valve. The throttle sleeve 29 is moved by a rod 45 acting through a spring 46. The rod 45 is operated by a crank 51 having a crank-pin 49 which engages flanges 47. The throttle valve may be arranged in series with the fuel flow to the burners, or arranged to control the fuel flow in the spill line from spill-type burners or to control a by-pass around the pump. The throttle opening 41 will then be modified to suit the type of fuel system in which it is employed.
Patent GB-1359903-A (GB)
Title: Demodulator circuit
IPC: H04N5/455
Filed: 1972-02-14
Abstract: 1359903 Noise suppression; synchronous detectors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Feb 1972 [17 Feb 1971] 6799/72 Headings H3T and H4L A synchronous demodulator circuit for demodulating the modulated carrier of a television signal, comprises a first input for a modulated carrier signal to be demodulated a second input for a reference signal related in frequency and phase with the signal to be demodulated, and a balanced output circuit which is coupled through a full-wave rectifier circuit to an output from which a demodulated television signal may be derived. In a first embodiment the signal is applied via terminals 5, Fig. 1, to two rectifier circuits comprising series-connected diodes 17, 19 and 21, 23 respectively. A related reference carrier is derived by means of a circuit 9, which may comprise a filter and optional limiters, or a locked oscillator, and is applied to the rectifier diodes 17, 19 and 21, 23 via a transformer 11 with a centre-tapped secondary. A cross load circuit 29, 31 there appears the demodulated waveform 41 in which sync. pulses are the most positive part, the video signal also being positive, but noise pulses 45 representing more than 100% modulation are negative. Across load circuit 25, 27 the opposite occurs, the signal waveform 43 being negative and the noise pulses 47 positive. These two waveforms are applied over diodes 33, 35 respectively, to the output terminals 39, resulting in an output signal 49 on which noise pulses 51 appear as black periods, instead of whiter-than-white signals. In a second embodiment the signal is applied to the base of a transistor 53, Fig. 2, the collector-emitter path of which forms the common emitter circuit of a pair of transistors 57, 59 to the bases of which the reference carrier is applied in push-pull. The collectors of transistors 57, 59 are coupled to the bases of a further pair of transistors 65, 67 respectively, which have a common emitter load 69: transistors 65, 67 act as the full-wave rectifier circuit, the output appearing at terminals 39, across the emitter circuit resistor 69.
Patent GB-1473608-A (GB)
Title: Transmitter-receiver
IPC: H04B1/54
Filed: 1975-02-18
Abstract: 1473608 Transmitter-receiver INTERNATIONAL STANDARD ELECTRIC CORP 18 Feb 1975 [27 Feb 1974] 6802/75 Heading H4L In a transmitter-receiver, to detect among several available channels, an idle channel for establishing communication, an intermediate frequency signal, modulated with a test indicium and having an amplitude only slightly above the i.f. noise level in the absence of a received input is injected into the receiver i.f. signal, while the transmitter-receiver is tuned successively to the available channels until selective call receiver 13 detects the presence of the test indicium. Should no idle channel be detected in a first channel scan, the test is repeated with a higher test i.f. signal level. The test indicium may be the transmitter-receiver's own call number, or an otherwise unused one. The receiver utilizes two intermediate frequencies, the test signal being generated by oscillator 16, the test indicium being received from generator 27, the test signal being at the second i.f. and injected at the output of crystal filter 8, the first i.f. local oscillator 19 being controlled by channel switching device 18, oscillator 19 also ensuring that transmitter 14 is tuned to the same channel as the receiver. In the transmit mode, a call number of a wanted party provided by generator 20, may be transmitted, microphone 22 being provided for voice transmission. The simplex, or duplex transmitter/receiver utilizes frequency modulation, call numbers taking the form of a tone sequence. The desired level of the test signal is set using attenuator 17. For normal use, the receiver tunes cyclically through the available channels until one transmitting the transmitter-receiver's own call number is detected by unit 13, operating a visual or audible signalling device 21.
Patent GB-977256-A (GB)
Title: Fluid-pressure control valve system
IPC: F16D48/02
Filed: 1962-02-22
Abstract: 977,256. Valves. E. HERION. Feb. 22, 1962 [March 13, 1961; March 29, 1961], No. 6902/62. Heading F2V. A valve casing 1, Fig. 1, has an inlet 2, two exhaust ports 3, 4 and two working ports 6, 7 connected to a common line 8; within the casing are two opposed, main slide-valves 9, 9<SP>1</SP> each incorporating an actuating piston 10 loaded by adjustable springs 11 disposed in chambers 12 which are connected to the inlet 2 via passages 13 and three-way electromagnetically-operated pilot-valves 14; the main valves are of smaller effective area than the pistons. The main valves 9, 91 embody spindles 16 which extend through seals 17 into a chamber 18 where reduced parts 20 abut each other, which parts form a common recess 21; the parts 20 may comprise projections that constitute a cam when the parts engage. The cam on recess 21 co-operates with a resettable trip 22 that actuates a switch 23 controlling the pilot valves 14; the switch may be replaced by a valve in the inlet 2; alternatively or in addition the trip may control another valve in the port 6 whereby the latter is connected to the port 3. Actuation of both pilot valves 14 causes the inlet pressure to move both main valves away from each other whereupon both ports 3, 4 are closed and both ports 6, 7 are open to the inlet 2. If only one pilot valve 14 is operated, say the lefthand one, then both main valves move as one to the left, the trip 22 is operated and deenergizes the pilot valve so that the main valves return to the central position shown and exhaust the line 8. The distance that one main valve follows the other is defined by adjustable stops, not shown. In a modification (Fig. 3, not shown) the main valves do not abut directly but have one or more springs interposed therebetween, over the central part of which an adjustable sleeve is supported on a pivoted lever that coacts with the trip. The main valves are of the lift type and the trip operates only when the two main valves do not actuate simultaneously. In another modification, the abutting ends 36, Fig. 4, of the main valves 30 form a valve closure which in conjunction with bores 37, 38 enable the inlet 2 to be connected with ports 6, 7 provided that both main valves move outwardly together. If the pilot valves 14 are not operated in concert or one of them fails then the ends 36 remain in abutment, the line 8 is not pressurized, and the trip 22 is lifted. Adjustable throttles 65 are provided in the passages 13 whereby the pressure rise in chambers 12 may be synchronized or given a mutual delay. In a further modification (Fig. 5, not shown) the trip is replaced by a manually-resettable latch co-operable with the outer end of each main valve spindle.
Patent GB-1138646-A (GB)
Title: Feeder for the piece-by-piece distribution of sheet material from a pile stacked on its edge
IPC: B65H3/30
Filed: 1967-02-14
Abstract: 1,138,646. Feeding sheets. J. BOBST ET FILS S.A. 14 Feb., 1967 [14 Feb., 1966], No. 6926/67. Heading B6B. General.-Sheets are separated from a pile 1 supported on edge on endless conveyer belts 54 by suction member 24 which tilts the sheets about their bottom edge such that they engage arms 51 of endless chain conveyer 50 which lower them on to an endless conveyer (moving perpendicularly to the plane of the drawing) where they are engaged by blocks 2. Pile tables and supports.-Conveyer belts 54 may be positioned at different heights, Fig 4, e.g. 541 and 54<SP>11</SP> to support irregularly shaped stock 55, and be tilted towards the end from which the sheets are being separated. Sheet guides.-Guides 39, one on each side of the pile, serve to centre the pile during feed. Also provided are lower lateral guides 62, Fig. 4. Separators.-At least one separator comprising an arm 23 and suction pad 24, is provided and is packed on shaft 32 by means of cam 27 on driven shaft 18. Working in synchronism with suction separator 24 is a sheet retaining dog 26 mounted on arm 34 reciprocated by cam 28, and also a rotatable segment 25 which serves to engage the back of the separated sheet Fig. 9 and push it into position 1a, Fig. 1. Cylinder 21 acts on the lower edge of the sheet to assist separation. Non-movable dogs 53 support the margins of the stack at the front face thereof. Sheet carriers and forwarders.-At least one chain 50 carries arms 51 which pass into the path of the top edges of the separated sheets and set the sheets down in a horizontal position 1h. Arms 51 are interchangeable for ones of different size to accommodate various sheet sizes (Fig. 5, not shown). The separator and the conveyer 50 are adjustable in height and together with conveyer 54 towards and away from one another to accommodate various sheet sizes. If more than one separator and conveyer 50 is used they may be adjustable laterally of the stack and may permit simultaneous separation from two stacks, one beside the other.
Patent GB-971429-A (GB)
Title: Improvements in and relating to concrete drainpipes
IPC: E02B11/00
Filed: 1961-02-24
Abstract: 971,429. Drainage pipes; pipe joints. A. HORN. Feb. 24, 1961 [Feb. 25, 1960], No. 6945/61. Headings F2G and F2P. A method of laying a concrete soil drainage pipe to counter the risk of plant roots penetrating into the pipe consists in laying a concrete pipe which has a longitudinal section more permeable to water than the rest of the pipe with the said section lowermost. As shown in Fig. 1, the lower portion 7 of the pipe 1 has a flattened area 3 and is of highly porous concrete, or, as shown in Fig. 2, the pipe has an eccentric bore 2. The flattened area 3 may extend wholly or partially along the pipe and have interrupted, continuous or staggered grooves therein. Conical or spherical spigot and socket formations are provided on the ends of the pipe and the joints may be sealed with cold asphalt, bitumen or sealing tapes. Specification 365,805 is referred to.
Patent GB-297065-A (GB)
Title: Improvements in advertising signs
IPC: G09F13/14
Filed: 1927-03-14
Abstract: 297,065. Burns, W. A. March 14, 1927. Signs. - Signs of the type in which a. front stencil is illuminated by a rearwardly-arranged reflector, are fitted with a tiltable reflector set at varying angles for use with natural or artificial light. In Fig. 2 of the Provisional drawings, the swinging member G has one plain silvered reflecting surface G<1> and a diffusing surface G<2>. During day. light, top light received on the surface G<1> is reflected through the stencil A. At night, light from the lamp H is received on the surface G<2> in the position K and diffused and reflected through the stencil. A modification deals with the utilization of top artificial lighting. Reference is made to clockwork or solenoid mechanism for switching over from daylight to artificial light and vice versa. In a further modification the diffusing screen G<2> is parabolic, and in another construction front and rear stencils are used for two-way vision, and the mirror plate is rotated continuously to produce a flashing sign. In a further construction the lamp is mounted between the two surfaces G<1>, G<2>. and in another form is mounted under a floor plate of fluted glass.
Patent GB-1097853-A (GB)
Title: Tubing for packaging purposes
IPC: B65D33/00
Filed: 1966-02-17
Abstract: 1,097,853. Plastics bag tubing. CELLOPLAST AB. Feb. 17, 1966 [Feb. 17, 1965], No. 7070/66. Headings B8C and B8K. The bag tubing of Specification 920,516 (which has slits 12 (Fig. 1) extending over the whole width of the gussets and almost to the edge of the tubing) has modified seals 15, defining the end of each bag, the seal extending only between the inner folds of the pleats. The seal may be made spotwise.
Patent GB-137955-A (GB)
Title: Improvements in and relating to the manufacture of spades and like implements
IPC: A01B1/22
Filed: 1919-03-21
Abstract: 137,955. Brettell, W. A. March 21, 1919. Fixing by separate sockets, and riveted joints.-The handle socket a of a spade or like implement is flattened out at. the lower end b and slit to receive the blade e, which is secured by rivets in holes c. Reference has been directed by the Comptroller to Specifications 408/84, 7544/84, 2945/85, [Class 6, Agricultural appliances for the treatment of land &c.], 1913/87, 572/94, [Class 6, Agricultural appliances for the treatment of land &c.], and 25774/09.
Patent GB-939805-A (GB)
Title: Process and apparatus for the combustion of sulphur
IPC: B01J19/00
Filed: 1960-02-29
Abstract: <PICT:0939805/III/1> <PICT:0939805/III/2> <PICT:0939805/III/3> Sulphur dioxide is manufactured by the combustion of elementary sulphur with air, air and molten sulphur being injected a velocity into one end of an elongated primary combustion chamber, secondary air being blown through inlets spaced along the whole length of the primary chamber, and the reaction being completed in a main combustion chamber of greater cross-section.  Atomized molten sulphur and primary air are injected at 4 into the preliminary chamber 1, and secondary air is blown tangentially or radially into the chamber 1 through inlets 2 inclined towards the nozzle end of the chamber.  The coaxial main chamber 5 has a chicane baffle 7.  The main chamber may surround the preliminary chamber, baffles containing the burning sulphur to follow a tortuous path, Fig. 2 not shown.  In a further modification, Figs. 4 and 5, the chamber 1 is separated from the main chamber 5 by an arcuate wall 17 extending across the furnace and partly supported by the baffle walls 18, 19 in the main chamber 5. Tertiary air may be blown into the main combustion chamber.
Patent GB-1370538-A (GB)
Title: Method and apparatus for mixing gas and liquid
IPC: B01F5/04
Filed: 1972-02-16
Abstract: 1370538 Mixing liquid and gas; gas/liquid contact BADISCHE ANILIN- & SODAFABRIK AG 16 Feb 1972 [19 Feb 1971] 7123/72 Headings B1C and B1F Gas and liquid are mixed in a conduit 1 having at least one each gas and liquid nozzles which are adjacent and the axes of which are coaxial with in parallel to each other and that of the conduit (as shown, coaxial nozzles 2, 3) and an additional liquid inlet 6, the cross-sectional area of the mixing conduit being 5-500 times the total cross-section of the liquid nozzle(s) and its length 2-30 times its hydraulic diameter. Helical motion may be imparted to the liquid or mixture by tangential injection or by suitable guides. In operations the liquid is introduced through the nozzle at a speed of 5-100 m/sec., the additional liquid entering at a substantially lower speed. There may be a means to produce back-pressure such as baffle plates, a centrifugal separator, valve, or a bubble column (10, Fig. 3, not shown) in which case the apparatus serves to inject gas into the column. Alternatively the mixture may be projected against a baffle (8, Fig. 2, not shown). Examples relate to the chlorination of water and the oxidation of sodium sulphite to sodium sulpate.
Patent GB-1488474-A (GB)
Title: Method for constructing an industrial plant on land
IPC: E02D29/09
Filed: 1976-02-24
Abstract: 1488474 Siting buildings MITSUBISHI JUKOGYO KK 24 Feb 1976 [6 March 1975] 07125/76 Headings E1A and E1S An industrial plant, e.g. a chemical plant, is constructed initially as a floating structure 1, then floated into a position adjacent its required working position by sea or, e.g. canal, whereafter the region 10 (Fig. 4) around the structure 1 is isolated from the surrounding water, by e.g. an embankment 11, the water level in region 10 is raised by pumping water in, the structure is moved into position at 9, and the water is then pumped out of region 10 again, causing the structure to settle in position, whereafter the region may be filled with soil 12. For Figures see next column
Patent GB-437808-A (GB)
Title: Improved method of and/or substance for producing paths, road surfaces, floorings and the like
IPC: E01C11/00
Filed: 1934-03-06
Abstract: A composition for making roads, pavements, tennis courts, and the like, consists of fibrous or granulated metal or minerals which do not disintegrate in water, such as sand, gravel, flint, quartz, and 3-5 per cent of a drying oil such as wood, nut, poppy, hemp, or linseed oil, to which has been added a small proportion, say 1 per cent, of its weight of a dryer such as a lead, zinc, manganese, or cobalt compound.  On applying this composition to the road &c., an exothermic reaction sets in and the temperature rises to 120-150 DEG C.  The surface is then covered by a layer of loose sand heated to this temperature which is maintained for about 48 hours, when the sand is removed and the road is fit for traffic on cooling.  In winter, it is necessary also to preheat the foundation to the same temperature and to maintain this temperature for five days.  A layer of loose sand or of porcelain-like balls may be interposed between the foundation and the upper surface.  In hilly districts this sand may be mixed with a small quantity of mineral oil.  Lateral retaining walls, gutters, sidewalks, may be made of the same composition.